Billet (manufacturing) on:
[Wikipedia]
[Google]
[Amazon]
Semi-finished casting products are intermediate product, intermediate casting (metalworking), castings produced in a steel mill that need further processing before being finished goods. There are four types: ''ingots'', ''blooms'', ''billets'', and ''slabs''.
Ingots are large rough castings designed for storage and transportation. The shape usually resembles a rectangle or square with generous fillet (mechanics), fillets. They are tapered, usually with the big-end-down.
A billet is a length of metal that has a round or square cross-section, with an area less than . Billets are created directly via continuous casting or extrusion or indirectly via hot rolling an ingot or bloom. Billets are further processed via profile rolling and drawing (manufacturing), drawing. Final products include bar stock and wire.
Centrifugal casting (industrial), Centrifugal casting is also used to produce short circular tubes as billets, usually to achieve a precise metallurgical structure. They are commonly used as Cylinder_(engine)#Cylinder_sleeving, cylinder sleeves where the inner and outer diameters are grinding (abrasive cutting), ground and machined to length. Because their size is not modified significantly, they are not always classified as semi-finished casting products.
In copper production, a billet is a long, about diameter, of pure copper.
Global Steel Slab Market Outlook
''Commodity Inside''. 16-08-2018.
File:CC-OXY.jpg, An oxygen gas torch cutting a slab
File:Slabs stack.jpg, Steel slabs
Ingot
Ingots are large rough castings designed for storage and transportation. The shape usually resembles a rectangle or square with generous fillet (mechanics), fillets. They are tapered, usually with the big-end-down.
Bloom
In the era of commercial wrought iron, blooms were slag-riddled iron castings poured in a bloomery before being worked into wrought iron. In the era of commercial steel, blooms are intermediate-stage pieces of steel produced by a first pass of rolling (metalworking), rolling (in a blooming mill) that works the ingots down to a smaller cross-sectional area, but still greater than . Blooms are usually further processed via rotary piercing, structural shape rolling and profile rolling. Common final products include structural shapes, rail tracks, rails, rods, and seamless pipes.Billet
A billet is a length of metal that has a round or square cross-section, with an area less than . Billets are created directly via continuous casting or extrusion or indirectly via hot rolling an ingot or bloom. Billets are further processed via profile rolling and drawing (manufacturing), drawing. Final products include bar stock and wire.
Centrifugal casting (industrial), Centrifugal casting is also used to produce short circular tubes as billets, usually to achieve a precise metallurgical structure. They are commonly used as Cylinder_(engine)#Cylinder_sleeving, cylinder sleeves where the inner and outer diameters are grinding (abrasive cutting), ground and machined to length. Because their size is not modified significantly, they are not always classified as semi-finished casting products.
In copper production, a billet is a long, about diameter, of pure copper.
Slab
A slab is a length of metal that is rectangular in cross-section. The slab is created directly by continuous casting or indirectly by rolling an ingot on a slabbing mill. Slabs are usually further processed via rolling (metalworking), flat rolling, skelping, and pipe rolling. Common final products include sheet metal, plates, strip metal, pipe (material), pipes, and Tube (fluid conveyance), tubes. Slab are mainly produced through blast furnace route. One of the reasons to preferably produce slab through BF route is to achieve high quality.''Commodity Inside''. 16-08-2018.
References
{{reflist Casting (manufacturing) Metalworking terminology